Global Patent Index - EP 1467422 A3

EP 1467422 A3 20060308 - Catalyst powder, catalyst electrode, and electrochemical device

Title (en)

Catalyst powder, catalyst electrode, and electrochemical device

Title (de)

Katalysatorpulver, Elektrodenkatalysator und elektrochemische Vorrichtung

Title (fr)

Poudre catalytique, catalyseur d'électrode et dispositif électrochimique

Publication

EP 1467422 A3 20060308 (EN)

Application

EP 04008473 A 20040407

Priority

JP 2003103687 A 20030408

Abstract (en)

[origin: EP1467422A2] Disclosed is a catalyst powder (1) contained in an electrode, wherein the catalyst powder includes a catalytic substance (3) supported on a conductive powder (2), the catalytic substance being comprised of at least a catalyst, the weight ratio of the catalytic substance to the catalyst powder is in the range of 55 to 75 wt%, and the areal density of the catalytic substance is in the range of 1 to 3 mg/cm 2 . Also disclosed is a catalyst electrode including the catalyst powder and a solid polymer electrolyte. Further disclosed is an electrochemical device including a plurality of electrodes, and an ionic conductor sandwiched between the electrodes, wherein the above-mentioned catalyst electrode constitutes at least one of the plurality of electrodes.

IPC 8 full level

B01J 23/42 (2006.01); H01M 4/92 (2006.01); B01J 23/38 (2006.01); B01J 23/46 (2006.01); B01J 35/02 (2006.01); H01M 4/86 (2006.01); H01M 4/88 (2006.01); H01M 4/90 (2006.01); H01M 8/00 (2006.01); H01M 8/10 (2006.01)

CPC (source: EP KR US)

H01M 4/8807 (2013.01 - EP US); H01M 4/8821 (2013.01 - EP US); H01M 4/8882 (2013.01 - EP US); H01M 4/90 (2013.01 - KR); H01M 4/92 (2013.01 - EP US); H01M 4/926 (2013.01 - EP US); H01M 8/1004 (2013.01 - EP US); Y02E 60/50 (2013.01 - EP)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 1467422 A2 20041013; EP 1467422 A3 20060308; EP 1467422 B1 20120725; CN 100521314 C 20090729; CN 1536695 A 20041013; JP 2004311225 A 20041104; JP 4207120 B2 20090114; KR 101019158 B1 20110304; KR 20040087920 A 20041015; US 2004265678 A1 20041230; US 7462575 B2 20081209

DOCDB simple family (application)

EP 04008473 A 20040407; CN 200410035252 A 20040408; JP 2003103687 A 20030408; KR 20040023762 A 20040407; US 81987104 A 20040407